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| Number | Title | Issue Date |
| 7111374 | Door seal drilling and pinning Improved drilling and pinning machines and methods for processing elongate flexible e.g. rubber strips of seal material for forming seals about openings. The machines and methods form precisely positioned holes in the rubber strip, and insert pins in the holes. Oppo... | 09/26/2006 |
| 7011615 | Method for making a multicompartment thermoplastic bag A method of making a multicompartment reclosable thermoplastic bag having at least two compartments is disclosed. Each compartment has a top, a bottom, two side edges, and two opposing sidewalls joined at the side edges and the bottom. Each compartment has a closure... | 03/14/2006 |
| 6881180 | Apparatus for forming a bottom closure for a container A method and apparatus for forming a bottom closure of a container employing multiple assembly lines and including a universally foldable seal fin as a part of the bottom closure. A novel blank for the container is disclosed. ... | 04/19/2005 |
| 6602174 | Method and apparatus for sealing a drawtape to a hem of a thermoplastic film structure A method and apparatus for sealing a drawtape to a hem of a thermoplastic film structure is disclosed. The thermoplastic film structure includes a panel, the hem, and the drawtape. The hem is formed along one end of the panel, and the drawtape is housed w... | 08/05/2003 |
| 6599225 | Method of closing the bottom of a container A method and apparatus for forming a bottom closure of a container employing multiple assembly lines and including a universally foldable seal fin as a part of the bottom closure. A novel blank for the container is disclosed.... | 07/29/2003 |
| 6564843 | Fastener tape, method of and apparatus for making fastener tape, method of using fastener tape, and reclosable bag utilizing fastener tape A fastener tape for use in the manufacture of reclosable plastic bags is provided. The fastener tape comprises an intermediate layer and a reclosable fastener profile thereon. The intermediate layer includes three layers of co-extruded plastic, with not m... | 05/20/2003 |
| 6561696 | Draw tape bag and method of manufacture A plastic draw tape bag includes a non-destructive hem seal which runs along the width of the bag to secure the draw tape. The seal is created by bonding two layers of film by using an adhesive, a hot seal, or a coextruded film. When stressed by adequate ... | 05/13/2003 |
| 6186934 | Hanger bag A package is formed from two sheets of thin film material which are double backed upon each other to form a header and a rigid plastic insert is connected to the header coincident with a cut out formed therein. The cut exposes an internalized J-shaped por... | 02/13/2001 |
| 6059458 | Elastic top drawtape bag and method of manufacturing the same A drawtape bag comprises a pair of pliable thermoplastic body panels joined to each other along a pair of opposing sides and a bottom bridging the opposing sides. The bag may be opened along the mouth end formed opposite the bottom. At least one of the bo... | 05/09/2000 |
| 5857953 | Draw tape machines This invention pertains to draw tape equipment, and methods for incorporating draw tapes into plastic and like bags. In general, a continuous plastic web is slit at a slitting station to form layers, and respective free edges. The web then passes to a hol... | 01/12/1999 |
| 5797828 | Draw tape machines and methods This invention pertains to draw tape equipment, and methods for incorporating draw tapes into plastic and like bags. In general, a continuous plastic web is slit at a slitting station to form layers, and respective free edges. The web then passes to a hol... | 08/25/1998 |
| 5716137 | Bag made of thermoplastic foil The invention relates to a bag of thermoplastic resin foil and a method of making such a bag provided with a draw strip (3) and a hand hole (8) and in order to provide a relatively high carrying capacity the front wall (1) and the back wall (2) of the bag... | 02/10/1998 |
| 5374232 | Method of making a gift bag A method of making a gift bag which contains a pair of ribbon loops in the neck which, when pulled in opposite directions, form a cluster at the top of the bag about which the ribbons can be tied to form a fancy package. The method of in-line production of suc... | 12/20/1994 |
| 5346456 | Plastic film bag manufacturing apparatus and associated methods, and plastic film bags produced thereby An in-line machine for attaching elongated, flexible closure tie elements to the individual bag portions of a laterally folded plastic film web being continuously discharged from a bag forming station, and being forcibly captured by a winder mechanism, en... | 09/13/1994 |
| 5188580 | Plastic film bag manufacturing apparatus and associated methods, and plastic film bags produced thereby An in-line machine for attaching elongated, flexible closure tie elements to the individual bag portions of a laterally folded plastic film web being continuously discharged from a bag forming station, and being forcibly captured by a winder mechanism, en... | 02/23/1993 |
| 5150970 | Open mesh carrying bag and method of making An open mesh carrying bag having a drawstring closure is constructed of an open mesh material provided with a hem at the closure, the hem including a folded-over portion of the material overlapping a further portion of the material, the folded-over portio... | 09/29/1992 |
| 5077957 | Web of interconnected bags A method for manufacturing a web of interconnected bags from a semitubular web of material, in which pockets are formed at a first side of the web and a second side of the web adjacent a first of two longitudinal outer edges of the web. At least one conti... | 01/07/1992 |
| 5069554 | "Tablecloth" disposal system A disposal system comprising a temporary, disposal work surface covering of substantially flat, flexible sheet material, such as extruded plastic or the like, having cinch means incorporated therein. While the preferred embodiment of the present invention... | 12/03/1991 |
| 5057065 | Process for making draw tape bags with integrally formed draw tapes A process for manufacturing draw tape bags, unique tubular films used in the process and the resulting draw tape bags are disclosed. The process begins with the step of forming a tubular film having a longitudinal region with a film strength greater than ... | 10/15/1991 |
| 5050999 | Open-mesh net bag and method of forming the same An open-mesh net bag is formed of a rectangular piece of open-mesh netting and a pair of elongated flexible cords. A central length portion of each cord is interlaced through the meshes of netting piece along a respective end edge region, a pair of loop-f... | 09/24/1991 |
| 5045042 | Plastic film bag with integral plastic film tie element, and associated fabrication methods A series of bags are fabricated using a continuous, high-speed bag-forming process in which an elongated section of flattened film tubing is longitudinally conveyed toward a receiving station in which the formed bags are suitable packaged. As the flattene... | 09/03/1991 |
| 5024642 | Rotary draw tape bag making apparatus and method An apparatus is provided for continuously sealing a thermoplastic draw tape to a thermoplastic bag at a sealing section. The bag forms one of a plurality of bags formed on a continuous web of thermoplastic material. The bag includes a hem defining a chann... | 06/18/1991 |
| 4895611 | Method and apparatus for making non-roping thermoplastic draw tape for thermplastic bags Method and apparatus for the manufacture of non-roping thermoplastic draw tape handles for insertion into thermoplastic bags and in particular for the continuous application of an adhesive coated reinforcing layer of material to the handled portion of the... | 01/23/1990 |
| 4881933 | Draw tape bag forming method and apparatus A draw tape bag is formed from a plastic web. An edge folding unit, a notching unit, a tape inserting unit, a heat sealing unit and a web folding unit form a compact continuous line in a rectangular path. The hem folder includes a L-shaped plate within th... | 11/21/1989 |
| 4850946 | Draw tape bag with two single wrap around draw tapes and method of manufacture A draw type bag with two single draw tapes having a front wall and back wall of flexible sheet material joined to each other along edges of the bag. Tubular channels extend along opposed transverse top edges of the front and back walls. The channels defin... | 07/25/1989 |
| 4850944 | Hot air hem sealer heat exchanger Apparatus for heat sealing the respective layers of film in a pair of hems in a moving web of film in the manufacture of draw tape bags. A pair of hot air hem sealer units is provided each of the units including a hot air hem sealer heat exchanger having ... | 07/25/1989 |
| 4842421 | Thermoplastic draw tape bag with tacky closure surface A thermoplastic draw tape bag having a tacky surface on the inside lip of the mouth of the bag and extending around the inner periphery of the lip on the open mouth of the bag, the surface comprising a material having the characteristic of sticking to its... | 06/27/1989 |
| 4834698 | Cam positioned index take up roll An apparatus and method of handling flexible foldable materials, particularly thermoplastic film webs, continuously fed from a supply by continuously moving input nip rolls to a dancer including a roll mounted for movement transversely to its central axis... | 05/30/1989 |
| 4834697 | Driven guide roller indexing system A plastic film product manufacturing apparatus includes a pair of draw rollers advancing a continuous length of plastic film, a plurality of guide rollers guiding the plastic film through at least part of the apparatus to the draw rollers and an endless f... | 05/30/1989 |
| 4832507 | Thermoplastic draw tape bag held closed by microencapsulated adhesive A thermoplastic draw tape bag having a microencapsulated adhesive on the inside surface of each hem of the bag. The adhesive has the characteristic that when the draw tape is withdrawn from the hem thereby causing the hem to gather, the tape pulls easily ... | 05/23/1989 |
| 4832677 | Method and apparatus for producing draw tape bags A method and apparatus for forming draw tape bags wherein the bag material moves continuously during the manufacture, except for the last step. The apparatus may be used with an in-line system wherein a tube is extruded and a side gusset is formed to crea... | 05/23/1989 |
| 4824425 | Web hem method and apparatus for insuring a flat hem in a web A draw tape bag forming apparatus includes an edge folder for folding the edges of pliable plastic web to form a hem in the edge. A draw tape is fed into the open hem which is then heat sealed along the inner edge of the hem wall to form a tubular hem. Th... | 04/25/1989 |
| 4822437 | Method and apparatus for making non-roping thermoplastic draw tape for thermoplastic bags Method and apparatus for the manufacture of non-roping thermoplastic draw tape handles for insertion into thermoplastic bags and in particular for the continuous application of a reinforcing layer of material to the handled portion of the thermoplastic dr... | 04/18/1989 |
| 4820251 | Web notching control apparatus A bag forming apparatus passes a hemmed web through a rotating edge notcher and related units to form a taped hem in the web which is passed through an intermittently operated bag making machine. A web supply unit includes a web take-up unit to maintain a... | 04/11/1989 |
| 4820249 | Multiple seam forming apparatus for continuously running webs A draw tape bag apparatus passes a web of plastic material having edge notched hems in the opposite edges to receive closing tapes. A hem sealer unit seals the folded layers of the web longitudinally of the folded edge to form the hem. The sealer unit inc... | 04/11/1989 |
| 4795412 | Apparatus for forming a hem in a moving web of film In the manufacture of draw tape bags hems are formed in the opposing panels of the moving web of folded thermoplastic film by utilizing tucker bars, that tuck the hem for the draw tape bags, equipped with a series of rubber wheels that pull the film diago... | 01/03/1989 |
| 4792241 | Dual draw tape bag and method of manufacture A dual draw tape bag has a front wall and back wall of flexible sheet material joined to each other along edges of the bag. Tubular channels extend along opposed transverse top edges of the front and back walls. The channels define an open mouth for the b... | 12/20/1988 |
| 4789247 | Blanket convertible to a tote bag A convertible beach blanket may be easily converted into a tote bag having a number of internal compartments by folding in a first then a second direction and pulling on a cord confined to a portion of the blanket by a series of eyelets formed in a circul... | 12/06/1988 |
| 4786191 | Draw tape bag with two single draw tapes and method of manufacture A draw tape bag with two single tapes has a front wall and back wall of flexible sheet material joined to each other along edges of the bag. Tubular channels extend along opposed transverse top edges of the front and back walls. The channels define an ope... | 11/22/1988 |
| 4786189 | Draw tape bag with two single wrap around draw tapes and method of manufacture A draw tape bag with two single draw tapes having a front wall and back wall of flexible sheet material joined to each other along edges of the bag. Tubular channels extend along opposed transverse top edges of the front and back walls. The channels defin... | 11/22/1988 |
